NUCLEAR

CONTENTSINTRODUCTIONNUCLEAR MICROBATTERYCLASSIFICATIONSOURCECONSIDERATIONNi-63 AS A SOURCEADVANTAGESDISADVANTAGESAPPLICATIONSCONCLUSION

acknowledgmentI would like to express my gratitudetowards the members ,volunteers andteachers associated with the Instituteof Engineers of Asansol EngineeringCollege, for providing us with thisgolden oppourtunity to express andshare our ideas through Seminar. Thisjourney has been extremely educationalas I have been able to grasp and learn alot from this .

INTRODUCTION For severaldecades ElectronicMechanical devices has been shrinking at afamously dizzying pace but the same doesnot go for the batteries that power them.They consume significant portion of thevolume yet do not provide enough energy.Nuclear sources provide an intriguingScientistshaveaoption in terms of powerdensityand foundlife.way of harnessing theenergy of nuclear sourcesby developing NuclearMicrobattery .

Nuclear microbatteryNuclear Microbatteries use the incredibleamount of energy released naturally bytiny bits of radio -active material withoutany fission or fusion taking place inside thebattery.Radio active films are packed in highenergy density hence small shape and size.The films are made ofIsotopes of Nickle orPolonium.

Self Reciprocating Cantilever

1.2 Working Radioactive beta source

decays and emits electrons.Copper beam collectselectrons and becomespositively charged.Electrostatic force isexperienced by the beamwhich bends it.Beam contacts a groundedelement, discharges andreturns to original position.Experiment is performed invacuum where bending can be

SOURCECONSIDERATIONThe RadioactiveIsotope mustmeet the following requirementsas a power source: Safety , reliability and low cost. Half life of the isotope must behighenough , which decidesthe life of battery. Decaying isotope must remainstable. Energy of the emitted particlesmust be low so that they do not

Ni-63 as theSource Ni -63 is ideal , it emits beta radiation hencedo not require shielding. They have a long half life period of 100 yrs . Beta particles travel a distance of 21-m insilicon before disintegrating , hence do notescape the battery. Power of 3 nanowatts is produced with 0.1millicurie of Ni-63 isotope. After decay the new isotope i.e. Cu-63 isstable .

ADVANTAGESNuclear microbatteries can power devicesfor decades.Do not require refueling or recharging.Compact size due to high energy density.Do not cause health hazards ,can be safelycontained in a simple plastic package.Environmental impact of disposing of thesemicro devices is minimal.Use of nuclear micro batteries will help inrestoration of energy resources such as fossilfuels.

APPLICATIONSUsed to power MEMS ( MicroElectro- Mechanical Systems) ,simple processors.Used in environmental andbattlefield sensors.Power for spacecraftinstrumentation.Used in actuators and resonators.

CONCLUSIONNuclear microbattery is an upcomingtechnology which is going to revolutionizethe way power is being supplied to devices.These daintiest dynamos will become thesolution of the energy crisis we are facingthese days.These wonders have the capability ofproviding power to a device for decades .There will be soon a day when thistechnology will be incorporated in cellphones and automobiles . The days ofrecharging and refueling will be gone. It isbelieved that this technology is going to